I know it's possible to convert an iPad app to a universal app, my question is is it worth it.
All the app does, is it shows an initial screen with a list of servers that it detects using UDP broadcasts. Once a user clicks on one, it loads a page from that server into a UIWebViewControl. That's it. It's pretty simple. I've looked at converting an exiting iPad app to a universal app and don't really like the process. My main hang up is understanding interface builder without the convenience of storyboard, especially the way the original coder had set it up. I'm also not sure how to make the app load a different view for the iPhone / iPod than it does for the iPad.
That being said, should I convert the app or just re-write it?
If the app is that small then start from scratch. You may copy most of the old code over if you think it is worth doing so.